How do I discern righteous guilt from false guilt?

I believe the Holy Spirit can make you feel guilty for an actual sin while the enemies of God can make you feel guilty for an alleged sin that isn't one or keep you feel guilty for a sin you repented from. What are ways to discern if a feeling of guilt is from the Holy Spirit or from the enemy? Do any Catholic or Orthodox saints or Pentecostals provide insight on how to discern?